Good news on multiple fronts. My father's emergency was piercing pain and numbness in legs from a broken disc in his lower back caused by a fall. Surgery went great and he is already walking again. Thanks for your thoughts. On to the defrost board. Solved. Pulled the board off completely and noticed...

Thank you Robert. Sorry I've been away. My father had emergency surgery so I needed to travel to be with him. I will try and get the compressor model # later today or tomorrow. We have lived here for 6 years and I can only guess at it's age. With that I will say maybe sometime in the early to mid 19...

Hi Robert, The run cap is reading 6.9μF and is rated at 7.5. I will plan to replace. Yes, the motor is getting the 240v it needs. I'm just not seeing the 24v at the contactor. But again, this is intermittent. I can read the 24v at the times it does decide to work. I do appreciate your help Robert. H...

Also, I have another slightly off topic question about heat pump operation and it's controls. About 4 years ago I installed a programmable thermostat replacing the original mechanical controls. Do these new programmable thermostats provide redundant short cycle protection for these older units or pe...

Hi Robert, Thanks for the reply. Neither the technician or myself could find a model number. There is a sticker on the outside that is so faded that only faint lines from a grid could be seen. I checked the capicitors by discharging them, connecting a multimeter and performing a continuity check, th...

Also, does anyone know what the consequences would be of leaving the test jumpers shorted?

Any help would be most appreciated.

Regards,
Bryan

I have a Nordyne Intertherm single package heat pump and within the last month the fan that pulls air across the radiator has been working intermittently. When running, the unit works fine and blows cold. So far I had a technician come and look at it and declared it within spec and did nothing. It w...